Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Schorl from
Norrö Mica Quarry, Norrö, Haninge, Stockholm County, Sweden


07600310017368198296796.jpg
Schorl, etc.

Norrö Mica Quarry, Norrö, Haninge, Stockholm County, Sweden
07600310017368198296796.jpg
Schorl, etc.

Norrö Mica Quarry, Norrö, Haninge, Stockholm County, Sweden
05403910017361083168770.jpg
Schorl, etc.

Norrö Mica Quarry, Norrö, Haninge, Stockholm County, Sweden
Locality type:Quarry
Classification
Species:Schorl
Formula:NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Muscovite1
Quartz1
Data
Mineral Data:Click here to view Schorl data
Locality Data:Click here to view Norrö Mica Quarry, Norrö, Haninge, Stockholm County, Sweden
Data Identifiers
Mindat Occurrence Record ID:890983
Long-form Identifier:1:3:890983:1
GUID (UUID V4):0
Nearest other occurrences of Schorl
3.1km (1.9 miles) ⓘKapelludden, Rånö, Haninge, Stockholm County, Sweden
13.5km (8.4 miles) ⓘÄngsholmarna Norra, Haninge, Stockholm County, Sweden
14.3km (8.9 miles) ⓘNyköpingsgruvan, Utö Mines, Utö, Haninge, Stockholm County, Sweden
14.3km (8.9 miles) ⓘUtö Mines, Utö, Haninge, Stockholm County, Sweden
20.5km (12.7 miles) ⓘStora Vika, Nynäshamn, Stockholm County, Sweden
71.3km (44.3 miles) ⓘGruvdalen Mine (Skeppsdal), Österåker, Stockholm County, Sweden
83.4km (51.8 miles) ⓘNorrskogen, Arlanda, Sigtuna, Stockholm County, Sweden
References
Gustafsson, Lars (1989) Norrö glimmerbrott [Norrö mica quarry]. Stuffen Medlemsblad för Södertörns Amatørgeologiska Sällskap [The specimen. Member magazine for Södertörns amateurgeological society], 10 (39). 8-12
 
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